Can you confirm what this is, please ?
 

http://www.erikaslist.com/pictures/img_0608.jpg

Seems to be the "other" side of my O2 sensor, and that plug is definitely broken in half, though the wires inside are not....

It could explain rougher starting than usual, though the car runs well...

Can you confirm what this is called, and can I buy one and splice to the existing wire, or do i have to get a whole O2 sensor "set" ? Thanks !

I have no clue what kinda motor you have, I'm guessing we are referring to your 83 SC motor.

It looks to me to be the other side of your O2 sensor but it looks like from the pictures that its suppose to come apart there. Other than a quick product search on PP, that would be my best guess. My 911 SC has no O2 sensor.

Hope this helps.

http://www.pelicanparts.com/cgi-bin/smart/more_info.cgi?pn=911-606-123-00-M14&catalog_description=Oxygen%20Sensor%2C%20%39%3 1%31%20%28%31%39%38%30%2D%38%33%29%20

Yes that's the OS sensor connector, just replace it with a standard wire connector. Hard starting is most likely related to the WUR.

Good call on the WUR, search the topic "That time of the year again" or something to that extent. Goes over some of the starting issues that are elaborated by weather changes.

+1 on O2 Sensor Connector Harness. I used a Bullet Type connectors and soldered it in. Make certain you heat shrink some weather proof type wrap on any exposed metal insulation surrounding the wire going into chasis.

TAKEN FROM ANOTHER POST:

(quote) The green wire consists of an inner standed conductor, which is insulated, and an external braided shield. This wire goes to the DME. The braided shield is grounded at the DME; therefore, no connection is required on this end. Cut the braided shield back about 1/2 inch from the end of the green wire insulation so that it does not contact the inner stranded conductor. The black wire coming from the Oxgen Sensor is a single insulated stranded conductor without the shield. A connection must be made between the green and black stranded conductors. DO NOT solder these wires. The Oxygen Sensor uses the air gap in the stranded wires to draw clean air to the Sensor. The solder can plug these air gaps and adversely affect Sensor operation. The original DME/Oxygen Sensor connection at the firewall location was made using a male plug (DME side) to a female socket (Oxgen Sensor side, the one with the black rubber boot). If either of your connectors is broken or missing, then you should CRIMP the two wires using a crimp connector or connectors (male and female) of your choice. A removable connection here is not necessary, but is convenient if the DME/Oxygen Sensor path requires troubleshooting in the future. (end quote)

This is what I found in my car 1980SC

http://forums.pelicanparts.com/uploa...1241371149.jpg

I agree the solder may effect the wire but the crimp tend to get loose so I had no choice. Others have soldered with no side effects but if this is a concern to some, crimping is the way.